Orphereus is a modular imageboard engine with a broad set of features: a flexible system of tags and filters, a pluggable architecture, memcached support for better performance, full-text search powered by the Sphinx engine, a private mode where invitation is required to join, AJAX, extended security, highly customizable appearance, an improved analogue of tripcodes, news and statistics modules, advanced administrative, a maintenance subsystem, internationalization, and much more.
Knowledge Management Key (KMKey) is Web-based knowledge management software that joins three solutions on the same collaborative platform: KMKey Project: for planning, managing, and controlling your project portfolio; KMKey Quality to manage your Quality System; and KMKey HelpDesk: for your maintenance and support department. It's developed using Python and Zope, on top of the content management CPS.
SUMO Access Manager is a security system for PHP Web applications that can be added using only one line of code. Administrators can manage authentication and authorization for users, groups, and security policies with easy, all through an intuitive Web based interface. You can create users that can authenticate their password via LDAP, MySQL internal users, MySQL/PostgreSQL/Oracle generic users tables, and via Google Mail account.